【作者】 黄旭娟； 刘鹤； 商士斌；

【Author】 HUANG Xu-juan;LIU He;SHANG Shi-bin;Institute of Chemical Industry of Forest Products,CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.of Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material;Chemical Engineering College,Nanjing Forestry University;

【机构】 中国林业科学研究院林产化学工业研究所； 生物质化学利用国家工程实验室； 国家林业局林产化学工程重点开放性实验室； 江苏省生物质能源与材料重点实验室； 南京林业大学化学工程学院；

【摘要】 采用环氧大豆油（ESO）为原料,乙酸乙酯为溶剂,四氯化锡为催化剂,通过环氧大豆油的开环自聚,制备聚合环氧大豆油（PESO）;再将PESO在碱性条件下水解,洗涤纯化后得到水解聚合环氧大豆油（HPESO）。通过傅里叶红外光谱（FT-IR）、核磁共振氢谱（¹H NMR）和凝胶渗透色谱（GPC）对HPESO的结构及分子量分布进行了表征,并对得到的水解聚合环氧大豆油脂肪酸钾盐表面活性剂（HPESO-K）的临界胶束浓度CMC及其表面张力(γ_cmc)、Krafft点（KP）、对液体石蜡/水体系的乳化能力（EP）与抑泡及消泡能力（FP）进行了研究。结果表明:在水溶液p H为9¹1条件下,HPESO-K的CMC值为0.15⁰.41g/L,γ_cmc值为25.6³0.2 m N/m。在水溶液p H=9条件下测得HPESO-K的Krafft点为37℃,液体石蜡/水体系中分出10 m L水的时间为130 s,亲水亲油平衡（HLB）值范围为10¹1,具有较强的泡沫稳定性。更多还原

【Abstract】 Polymerized epoxidized soybean oil（PESO） was firstly prepared through the ring-opening polymerization of epoxidized soybean oil in ethyl acetate using SnCl₄ as catalyst.The hydrolyzed PESO（HPESO） was obtained via the hydrolyzation of PESO under alkaline condition after purification.The chemical structure of HPESO were characterized by FT-IR,1H NMR and GPC.The critical micelle concentrations（CMC）,the surface tensions corresponding to CMC（γcmc）,the Krafft point（KP）,the emulsification properties（EP）,and the foam proterties（FP） of the K⁺ counterion of HPESO（HPESO-K） were investigated.The results showed that the CMC and γcmc of these HPESO-K surfactant ranged from 0.15 to 0.41 g/L and from 25.6 to 30.2 m N/m,respectively,with varying the p H of surfactants aqueous solution from 9 to 11.The KP of surfactants was 37℃ when the p H of surfactants aqueous solution was 9.When the surfactant was used as emulsifier,the time for 10 m L water separated from the turpentine/water emulsion was 130 s.The hydrophile lipophile balance（HLB） ranged from 10 to 11.The Polymerized vegetable oils-based surfactants also exhibited excellent stabilization for foams.更多还原